Be-swica

According to the Old English Dictionary:

(big-, bí-, bi-), an;

be-swica

m. A deceiver :-- Biswica deceptrix, fallax, seductrix, Wrt. Voc. ii. 138, 13. Hé sægde ꝥ Petrus bigswica wǽre, Bl. H. 173, 21. Heó gebær þone biswican, 149, 36. Git sindon bigswicon, 187, 30. be-swica